Machine for making cores from a roll of paper.



J. DUVALL.

MACHINE FOR MAKING CORES FROM A ROLL OF PAPER.

APPLICATION FILED APR-23, I915- Patented Nov. 28, 1916.

' 4 SHEETSSHEET 1.

MI" l llVl/E/VTOR James Duua/fi ATTORNEY WITNESSES:

APPLICATION FILED APR.23, l9l5.'

an 1 00 l 00 2 0 N d t H e t a D1 4 SHEETS-SHEET 2.

llVl/ENTUR James DIG/U67,

- WITNESSES:

/ OR/VEY J. DUVALL.

MACHINE FOR MAKING CORES FROM A ROLL OF PAPER.

APPLICATION FILED APR. 23,1915.

Patented Nov. 28, 1916.

4 SHEETS-SHEET 3.

INVE/VTOR James fiuvafl.

By A ATTORNEY J. DUVALL.

MACHINE FOR MAKING CORES FROM A ROLL OF PAPER.

APPLICATION FILED APR.23, 1915.

1 ,QflfifiQ. Patented Nov. 28, 1916.

4 SHEETS-SHEET 4.

W/TA/ESSES. Q llW/E/VTOR @[WM James Duva/l,

AM 1 d Q ATTORNEY meats-a.

JAMES'D'UVALL, 0F CAMIAS, WASHINGTON.

' l MACHINE FOR MAKING CORES FROIVIfi. ROLL OF PAPER.

Specification of Letters Patent.

Patented Nov. 2%, rare.

' Application filed Apri123,1915. $eria1No.23,528.

' Machines for Making Cores from a Roll of Paper, of which the following is a specification.

This invention relates to machines for making cores and has specifically to do with improvements in rotary cutters of machines for. making cores froma roll of paper on which to wind another roll of paper.

One of the main objects of my invention is to provide a rotary cutting mechanism for the preparation of strips or blanks of paper to be automatically Wound on a corewinder roll in the manufacture of paper cores.

To attain my object I have invented an improvement in rotary cutters whereby greater perfection in result can he accomplished than heretofore, and at the same. time embodying extreme simplicity in the rotary cutting device.

In the accompanying drawings, constituting a part of this specification, Figure lis a side elevation showing the general arrangement of the machine in connection with which my device is used. Fig. 2 is a large scale elevation of that portion of my machine which comprises one of the features of my invention, viz. the draw rolls by which the blank of suitable length is cut 0E from. the strip, and by which the leading end of the strip to be out ofi is shaped to enter the core-winder roll; Fig. 3 is a side elevatlon of the upper of the draw-rolls, by which the shaping of the leading end of the blank is effected Fig. 4 is a plan View of the same roll; Fig. 5 is a side elevation of the lower of said draw rolls; Fig. 6 is a plan view of such draw roll; Fig. 7 is a plan view of the strip of paper showing the manner in which the blank is formed; Fig. 8 is a side elevation in diagram form of the guide-way by means of which the blank is guided to the core-winder roll and Fig. 9 is a partial plan view of the devices shown in Flg.

a represents the legs of my machlne, and I) is the bed-plate of same, said bed-plate being made with a longitudinal slot 6' On the front legs of my machine, (see Fig. 1) are the brackets c, in which is removably mounted an arbor 03, carrying a roll of paper 6. Mounted on the front end of the bedv plate I) are parallel frame members f, running longitudinally of the machine, and in which are journaled the transverse shafts g,

g and h, h, that carry the cut-ofi and draw rolls respectively. See Fig. 2. The frame members f are provided at their forward end with projecting arms is, in which is rotatably mounted a fianged guide pulley Z. Gears m, m and n, n are fixed on theshafts g, g and h, k respectively, and said gears mesh with and drive each other in the direction indicated by the arrows in Fig. 1, through the medium of an intermediate gear 0. Said gear train receives its primary motion through a chain drive p, which runsover a sprocket q, the latter being fixed on the shaft 9'. A bracket r is supported beneath the bed-plate b of the machine and rotatably mounted in said bracket is a power shaft .9, on which is fixed a gear t. Power may be applied to shaft 8 in any convenient manner desired. At the rear legs of the machine is bolted a bracket to and rotatably mounted therein is a shaft '0, on which is fixed the gear w, sprocket m and the crank arm g l'. The drive chain p runs over the sprocket a", the ear to meshes with and is driven by the gear 5 and the crank arm 1; forms a medium for transmitting an oscillating motion to a sector gear 2, through the medium of a connecting rod 2, all parts being driven in the direction indicated by thearrows in Fig. 1. A paste pan 3 is mounted on a bracket 4, beneath the bed-plate b, and 5 is a paste roll, rotatably mounted on a shaft 5, in said pan, said paste-roll projecting up through the slot 6'. A paster sector 6 is fixed on a shaft 7, the latter being journaled in brackets 8. A sprocket 9 is also fixed on said shaft 7 and the chain drive p transmits rotary movement to said paster sector in the direction indicated through the medium of said sprocket 9. Driving gears z" and i connect the shafts 7 and i so that the latter are positively driven. Near the rear end of the machine is mounted a trans verse shaft 10, on which is fixed a pinion 11, meshing with and driven by a sector gear .2;

also fixed on shaft 10 is a one tooth ratchet is 16'. A guide-way 17 is supported on legs 1 the details of this guide-way being shown in Figs. 8 and 9.

It will be observed by referring to Fig. 1 that the paper strip e runs over the guide pulley- 1, carried through the draw and cut oil rolls as shown in Fig. 2, and thence to the core winder roll 16, the latter being intermittentlydriven by means of the crank movement transmitted from the constantly driven gear w, so as to thereby form the core.

The core-winder mechanism and means for operating same are of the well-known usual construction, and are, therefore not detailed herein, as they form no part of this invention, and are referred to briefly only for the purpose of showin their association with the parts which orm m invention. The draw-roll and cut-off rol s, which comprise my invention are shown vvin assembled form in Fig. 2 and in detailedform' in Figs. 3 to 6 inclusive.

ofl' roll 19 is fixed on' sha g; and-said roll is provided with a face groove 20, adapted to receive the cut-off blade. The ugper cutoff roll 21 is fixed on the shaftg. aid roll carries the cut-off blade 22, which isfixed in said cut-ofi roll by means of the set screws 23. The upper draw roll 18 is fixed on the shaft h. Said draw roll is provided with triangular shaped recesses 24, and the web of said roll is provided with lugs 18' located at the base of said recesses. Filler blocks 25 are also triangular in shape, and are adapted to be adjustably fixed in the recesses 24 so as to leave triangular ves 26, adapted to receive the blades of the lower draw roll. The blocks 25 are provided with medial countersunk slots 25.

adapted to receive the studs 27, by meansof said blocks to be adjusted inwardly or 'outwardly so as to thereby make the grooves 26 narrower or wider. The lower draw' roll 28 comprises a flanged roll fixed on shaft h. Said roll 28 has a longitudinal section cored out, the base of which is made with lateral lugs 28', and a filler block 29 is bolted on the lugs 28 in said cored out section by bolts 29, these latter being countersunk. (See Fig. 6.) The filler block 29 is made with beveled ends, so that when the filler block is fixed in place, these beveled ends will form with the sides of the cored out section of the roll two triangular shaped recesses 30. A cutter blade 31 provided with vertical adjusting slots 32, is adjustably fixed b studs 33 to the faces of the recesses 30. Mbunted centrally within the triangular recesses 30 are the waste ejecting members. Each of said members comprises a rod 34 which is inserted in a drilled hole 34 of the lug 35.

"incense (See Fig. 5.) The rod 3 4 is provided with a collar and a restraining plate 37 screwed to the top face of the lug 28', which plate limits the .upward movement of said ejector member. A compression coil sprin 38 is placed around the shank of the ejecting rod within said hole 34. The action of this portion of the machine is as follows: As the draw rolls 18 and 28 revolve (see Fig. 2) they will pull the paper strip e forward to the left, at the same time cutting out the triangular portions indicated by the numeral 40 in Fig. 7, these Waste portions being automation-ll ejected from the roll 28 as soon as the bla es 31 withdraw from the grooves 26. As the strip e passes between the cut-off rolls'19 and 21, the strip will be severed along the line 41. The shape of the resultin blank is then apparent by inspection of ig. 7.

3 Referring to Figs. 8- and 9, the guide-way. j 17,.comprises two parallel inclined ways 42 I I, 1.. I a hand 42' rigidly mounted on the legs 17 and Having reference to Fi 2, the lower cutextendin to a point in alinement with the core win er roll slot 16'. A side bar 43 is fixed on the way 42, and is adjustably inclined toward the center line of the ways. A transverse bar 44 is fixed on the bar 43, and a s ring arm 45, located centrally between t e wa s 42 and 42 is fixed on the bottom of the ar 44. Said arm 45 is curved upwardly at its free end (see Fi 8), so that the strip 6 will be stripped romthe roll 21 as said strip passes from the cut-off rolls. Furthermore, said arm 45' will direct the strip e down against the paster sector 6. Parallel spring arms 46 are fixed on the top of the arm 44, and extend to a. point in line with the lower end of the side bar 43. l

A transverse breaker shaft47, provided with a beveled disk 48, directs the stu e so that it will always be directed precise y into tbs sllot 16 of the core-winder roll 16.

. 1. In a machine ofthe character specified,

the combination of a air of coiiperating draw rolls,"a knife on t e peripher of one roll, and the other roll being provi ed with a slot adapted for receiving said knife, one sige of which slot is adjustable to the other s1 e.

2. In a machine of the character specified, the combination of a pair of coiiperating draw rolls, an angular knife on the eripheryof one roll, and the other ro be1n made with an angular cavit the wall 0 which forms the fixed side 0 a slot for receiving said knife, the opposite wall or'side of said slot being formed by a member, in said cavity, adapted for adjustment relatively to, but in parallel alinement with, said fixed side.

3. In a machine, of the character specified, the combination of a' pair of coiiperating said knife,

' matic means draw rolls, a radially adjustable angular knife on the periphery of one roll, and the other roll bein made with an angular cavity the wall 0 which forms the fixed side of a slot for receiving said knife, the opposite wall or side of said slot being formed by a member, in said cavity, adapted for adjustment relatively to, but in parallel alinement with, said fixed side.

4. A machine of the character specified, comprising a pair of cooperatin rolls one thereof made with a cavity, a knife secured to the wall of such cavity, the other roll being made with a slot adapted for receiving one side of which slot is adjustable to vary the width of the slot, autolocated in the cavity of the knifecarrying roll for ejectin the cut-out portion deposited therein, suc means bemg adapted to be placed in active state by the rolling of the rolls into cutting position cavity,

and acting when the rolls have passed such position, and means for driving said rolls.

5. A machine of the character specified comprising a pair of coiiperating rolls one thereof made with an angular cavity, an angular knife seemed to the wall of such the other roil being made with a slot adaptedfor receiving said knife, one side of which slot is adjustable to vary the width of the slot, automatic means located in the cavity of the knife-carrying roll for ejecting th cut-out portion deposited therein, such means being adapted to be placed in active state by the rolling of the rolls into cutting position and actingwhen the rolls have passed such position, and means for driving said rolls.

JAMES DUVALL. Witnesses:

WM. 0. Sonmmr, D. E. GRADE. 

